Brown Quartzite Pebbles ("KWARTZ-ite")

Brown quartzite pebbles

These pebbles are made of grains of quartz
welded together to form a really hard rock. They were rounded
smooth as they were battered and ground against each other in moving
water, in a river or on a beach.

To learn more about these quartzite pebbles, scroll farther down this
page.

Brown quartzite was originally a sandstone, made of
grains
of quartz sand cemented into rock. This rock was later
altered by heat and pressure, which sealed the grains even
more tightly together, changing it into much tougher quartzite
rock.